Short-term use of Band-Aids will not affect wound healing, but long-term use may delay healing. Band-Aids are made of sterile tape and sterile gauze containing medication, and can be used to protect the surface of a wound when a small wound occurs in the body, stopping the bleeding, but also has the effect of disinfecting the wound surface, so that the wound will not be contaminated by bacteria, thus allowing the wound to heal quickly. But if the long-term use of band-aid will lead to the wound, air circulation is poor, can not access to fresh air, while the wound exudate can not be discharged in time, may affect the wound healing. Therefore, band-aids can be used for a short period of time, but patients should try to change or remove them within 24 hours. When wounds occur, they should consult a doctor in time and give relevant treatment under the doctor’s guidance, and should not be treated without authorization to avoid wound infection.